/Engine/Plugins/FX/Niagara/Source/Niagara/Classes/NiagaraSystem.h
Get the cached parameter map traversal for this emitter.
const [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FNiagaraGraphCachedDataBase](API\Plugins\Niagara\FNiagaraGraphCachedDataBase), ESPMode::ThreadSafe > & GetCachedTraversalData() const